DE2900506C2 - - Google Patents
Info
- Publication number
- DE2900506C2 DE2900506C2 DE19792900506 DE2900506A DE2900506C2 DE 2900506 C2 DE2900506 C2 DE 2900506C2 DE 19792900506 DE19792900506 DE 19792900506 DE 2900506 A DE2900506 A DE 2900506A DE 2900506 C2 DE2900506 C2 DE 2900506C2
- Authority
- DE
- Germany
- Prior art keywords
- phenylenediamine
- cyanomethylbenzimidazole
- reaction
- cyanoacetic acid
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 11
- BWOVACANEIVHST-UHFFFAOYSA-N 2-(1h-benzimidazol-2-yl)acetonitrile Chemical compound C1=CC=C2NC(CC#N)=NC2=C1 BWOVACANEIVHST-UHFFFAOYSA-N 0.000 claims description 10
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- MLIREBYILWEBDM-UHFFFAOYSA-N cyanoacetic acid Chemical class OC(=O)CC#N MLIREBYILWEBDM-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- -1 cyanoacetic acid ester Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- ZIUSEGSNTOUIPT-UHFFFAOYSA-N ethyl 2-cyanoacetate Chemical compound CCOC(=O)CC#N ZIUSEGSNTOUIPT-UHFFFAOYSA-N 0.000 description 4
- DGJMPUGMZIKDRO-UHFFFAOYSA-N cyanoacetamide Chemical compound NC(=O)CC#N DGJMPUGMZIKDRO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- ZRDVHVJLNSJTOE-UHFFFAOYSA-N 2-cyano-3,3-dimethylbutanoic acid Chemical class CC(C)(C)C(C#N)C(O)=O ZRDVHVJLNSJTOE-UHFFFAOYSA-N 0.000 description 1
- MLIREBYILWEBDM-UHFFFAOYSA-M 2-cyanoacetate Chemical compound [O-]C(=O)CC#N MLIREBYILWEBDM-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
- C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
- C07D235/06—Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
- C07D235/16—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792900506 DE2900506A1 (de) | 1979-01-08 | 1979-01-08 | Verfahren zur herstellung von 2-cyanmethylbenzimidazol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792900506 DE2900506A1 (de) | 1979-01-08 | 1979-01-08 | Verfahren zur herstellung von 2-cyanmethylbenzimidazol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2900506A1 DE2900506A1 (de) | 1980-07-17 |
| DE2900506C2 true DE2900506C2 (en)) | 1988-01-07 |
Family
ID=6060185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792900506 Granted DE2900506A1 (de) | 1979-01-08 | 1979-01-08 | Verfahren zur herstellung von 2-cyanmethylbenzimidazol |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2900506A1 (en)) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4305714A1 (de) * | 1993-02-25 | 1994-09-01 | Hoechst Ag | Verfahren zur Herstellung von substituiertem und unsubstituiertem 2-(Cyanmethyl)benzimidazol |
| US6652052B2 (en) | 1997-07-15 | 2003-11-25 | Silverbrook Research Pty Ltd | Processing of images for high volume pagewidth printing |
| KR102653426B1 (ko) | 2017-11-13 | 2024-03-29 | 에코랍 유에스에이 인코퍼레이티드 | 2-치환된 벤즈이미다졸의 대규모 생산을 위한 신규한 단일반응기 균질 방법 |
-
1979
- 1979-01-08 DE DE19792900506 patent/DE2900506A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2900506A1 (de) | 1980-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: C07D235/16 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8330 | Complete disclaimer |